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86688286849 is a prime number
BaseRepresentation
bin101000010111100000…
…1100100100010000001
322021202110022020201201
41100233001210202001
52410014200134344
6103453554501201
76156134165113
oct1205701444201
9267673266651
1086688286849
1133845306a7a
1214973894801
13823699b6b8
1442a51533b3
1523c57634d4
hex142f064881

86688286849 has 2 divisors, whose sum is σ = 86688286850. Its totient is φ = 86688286848.

The previous prime is 86688286843. The next prime is 86688286907. The reversal of 86688286849 is 94868288668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62370067600 + 24318219249 = 249740^2 + 155943^2 .

It is a cyclic number.

It is not a de Polignac number, because 86688286849 - 211 = 86688284801 is a prime.

It is not a weakly prime, because it can be changed into another prime (86688286843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43344143424 + 43344143425.

It is an arithmetic number, because the mean of its divisors is an integer number (43344143425).

Almost surely, 286688286849 is an apocalyptic number.

It is an amenable number.

86688286849 is a deficient number, since it is larger than the sum of its proper divisors (1).

86688286849 is an equidigital number, since it uses as much as digits as its factorization.

86688286849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 509607936, while the sum is 73.

The spelling of 86688286849 in words is "eighty-six billion, six hundred eighty-eight million, two hundred eighty-six thousand, eight hundred forty-nine".